Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 56: Poster III
Q 56.27: Poster
Donnerstag, 21. März 2013, 16:00–18:30, Empore Lichthof
Bloch oscillations of particles with long-range interactions — •Christopher Gaul1,2, Antonio Rodriguez3, Rodrigo P. A. Lima4, and Francisco Domínguez-Adame1 — 1GISC, Departamento de Física de Materiales, Universidad Complutense, E-28040 Madrid, Spain — 2CEI Campus Moncloa, UCM-UPM, Madrid — 3GISC, Departamento de Matemática Aplicada y Estadística, Universidad Politécnica, E-28040 Madrid, Spain — 4Instituto de Física, Universidade Federal de Alagoas, Maceió, AL 57072-970, Brazil
As the two-particle problem has traditionally provided valuable insights into the full many-body phenomena, we study two particles in a lattice potential subject to an external field and to a long-range interaction. Using the semiclassical approximation, we find chaotic behavior in general, limited by several regular regimes: (i) Bloch oscillations in the relative motion, driven by the interaction, (ii) open trajectories, and (iii) independent oscillations of far away particles, driven by the external field.